ABSTRACT
Concerning liquidation of the slopes and excavations it is necessary to note the following complications (Kipko 2005): changing of the hydrogeological state in the adjoined massif; activation of the geomechanical processes; reducing of the bearing capacity of the rocks in the result of the underground water steeping; deformation of the surface in the result of underflooding and waterlogging; destruction of the brick beam fillingup; the surface gaps after shrinkage of the material mine shafts filling up; gas contamination of the deleted part of the excavation and uncontrolled methane output on the surface; pollution of the adjacent territories with underground water streams; destruction of the adjacent surface buildings and service.
